Nadar Mahajana Sangam was an organization established, due to the efforts of T. Ratnasamy Nadar, in 1910. It was open to any Nadar male of any subcaste or religion. The general purpose of the association was to uplift the Nadar community. Rattinasami Nadar's uncle, V. Ponnusami Nadar, was elected the first president of the association.